AppearanceCaragana arborescens a perennial deciduous shrub or small tree that can grow up to 10-15 ft. (3-5 m) tall.Foliage Leaves are alternate and 3-5 in. (7.6-12.7 cm) long. Each leaf is composed of 8 to 12 elliptic leaflets. Bark is smooth and green becoming duller as it ages.Flowers Flowers are yellow, tubular, and can be found in groups of up to four flowers. The blooming period occurs from May to June.Fruit Seed pods are slender, sharply pointed, smooth, and 1-2 in. (2.5-5 cm) long forming in late June. Color changes from green to tan in July and August.Ecological ThreatCaragana arborescens invades woodland edge environments, and pastures. It is native to Siberia and Manchuria.

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Vanessa Richins Myers, About.com, Bugwood.org

Dave Powell, USDA Forest Service (retired), Bugwood.org

Jamie Nielsen, University of Alaska Fairbanks, Cooperative Extension Service, Bugwood.org

Jamie Nielsen, University of Alaska Fairbanks, Cooperative Extension Service, Bugwood.org

Bonsak Hammeraas, NIBIO - The Norwegian Institute of Bioeconomy Research, Bugwood.org

Bonsak Hammeraas, NIBIO - The Norwegian Institute of Bioeconomy Research, Bugwood.org

Bonsak Hammeraas, NIBIO - The Norwegian Institute of Bioeconomy Research, Bugwood.org

Bonsak Hammeraas, NIBIO - The Norwegian Institute of Bioeconomy Research, Bugwood.org

Jamie Nielsen, University of Alaska Fairbanks, Cooperative Extension Service, Bugwood.org

Jamie Nielsen, University of Alaska Fairbanks, Cooperative Extension Service, Bugwood.org

John M. Randall, The Nature Conservancy, Bugwood.org

Vanessa Richins Myers, About.com, Bugwood.org